Barack Obama, the Unhappy Warrior

Foreign policy grants American presidents almost supernatural powers. From thousands of miles away, they can mobilize fleets and squadrons at a whim, sometimes killing without risking a single soldier's life. But foreign policy can also become a curse, with an equally mystical ability to ruin a presidency. Barack Obama learned that lesson watching his predecessor wage what Obama famously called "a dumb war" of choice in Iraq. His opposition to the invasion launched the one-term Senator's first presidential run, and he arrived in the White House with a clear vision of a humbler America narrowly focused on core interests, like healing domestic economic and social wounds. Obama would hunt down terrorists in caves and deserts and throw a harder punch at the Taliban in Afghanistan. But he also presented himself as a conciliator, a peacemaker who would land the Nobel Peace Prize before he'd even redecorated the Oval Office.